If you're using your Apple Watch with a transit card in the Wallet app, remove your transit card from your Apple Watch before you unpair.
How to unpair your Apple Watch from your iPhone
- Keep your Apple Watch and iPhone close together as you unpair them.
- Open the Apple Watch app on your iPhone.
- Go to the My Watch tab and tap All Watches.
- Tap the info button
next to the watch that you want to unpair.
- Tap Unpair Apple Watch.
- For GPS + Cellular models, choose to keep or remove your cellular plan.
- If you want to pair your Apple Watch and iPhone again, keep your plan.
- If you don't want to pair your Apple Watch and iPhone again, remove your plan. If you aren't going to pair with a different watch or iPhone, you might need to contact your carrier to cancel your cellular subscription.
- Tap again to confirm. You might need to enter your Apple ID password to disable Activation Lock. Before erasing all content and settings on your Apple Watch, your iPhone creates a new backup of your Apple Watch. You can use the backup to restore a new Apple Watch. After your Apple Watch unpairs, you'll see the Start Pairing message.
- Set up your Apple Watch again.
How to erase your Apple Watch if you don't have your iPhone
- On your Apple Watch, tap Settings > General > Reset > Erase All Content and Settings.
- Type your password if prompted.
- For GPS + Cellular models, choose to keep or remove your cellular plan.
- If you want to pair your Apple Watch and iPhone again, keep your plan.
- If you don't want to pair your Apple Watch and iPhone again, remove your plan. If you aren't going to pair with a different watch or iPhone, you might need to contact your carrier to cancel your cellular subscription.
- Tap Erase All to confirm. This resets your Apple Watch to the factory settings.
Try these steps if you forgot your passcode.
Erasing all content and settings erases all media, data, and settings from your Apple Watch, but it does not remove Activation Lock. To remove Activation Lock, unpair the watch first. Before your watch is erased, a backup of its contents is created on your iPhone.